I had in my mind that maybe a company would like to create a private community, so it would make sense to select “Discourage search engines from indexing this site” but without losing the feature of updating the activity stream…

Well, still doesn’t make sense to me to consider it a feature but that’s just me 🙂

I talked with my users and all of them in some “phase” saw the following message:

Authorization Required

This server could not verify that you are authorized to access the document requested. Either you supplied the wrong credentials (e.g., bad password), or your browser doesn’t understand how to supply the credentials required.